/*** * This code is a part of EvoApproxLib library (ehw.fit.vutbr.cz/approxlib) distributed under The MIT License. * When used, please cite the following article(s): V. Mrazek, L. Sekanina, Z. Vasicek "Libraries of Approximate Circuits: Automated Design and Application in CNN Accelerators" IEEE Journal on Emerging and Selected Topics in Circuits and Systems, Vol 10, No 4, 2020 * This file contains a circuit from a sub-set of pareto optimal circuits with respect to the pwr and wce parameters ***/ // MAE% = 0.78 % // MAE = 1.0 // WCE% = 1.56 % // WCE = 2.0 // WCRE% = 100.00 % // EP% = 49.74 % // MRE% = 4.35 % // MSE = 2.0 // PDK45_PWR = 0.032 mW // PDK45_AREA = 71.8 um2 // PDK45_DELAY = 0.67 ns #include #include uint64_t add8s_7VE(const uint64_t A /* 8-bit signed operand */, const uint64_t B /* 8-bit signed operand */) { uint64_t dout_16, dout_17, dout_18, dout_19, dout_20, dout_22, dout_23, dout_24, dout_25, dout_26, dout_27, dout_28, dout_29, dout_30, dout_31, dout_32, dout_33, dout_34, dout_35, dout_36, dout_37, dout_38, dout_39, dout_40, dout_41, dout_42, dout_43, dout_44, dout_45, dout_46, dout_47, dout_48, dout_49; uint64_t O; dout_16=((A >> 0)&1)^((B >> 0)&1); dout_17=((A >> 0)&1)&((B >> 0)&1); dout_18=((A >> 1)&1)^((B >> 1)&1); dout_19=((A >> 1)&1)&((B >> 1)&1); dout_20=dout_18&dout_17; dout_22=dout_19|dout_20; dout_23=((A >> 2)&1)^((B >> 2)&1); dout_24=((A >> 2)&1)&((B >> 2)&1); dout_25=dout_23&dout_22; dout_26=dout_23^dout_22; dout_27=dout_24|dout_25; dout_28=((A >> 3)&1)^((B >> 3)&1); dout_29=((A >> 3)&1)&((B >> 3)&1); dout_30=dout_28&dout_27; dout_31=dout_28^dout_27; dout_32=dout_29|dout_30; dout_33=((A >> 4)&1)^((B >> 4)&1); dout_34=((A >> 4)&1)&((B >> 4)&1); dout_35=dout_33&dout_32; dout_36=dout_33^dout_32; dout_37=dout_34|dout_35; dout_38=((A >> 5)&1)^((B >> 5)&1); dout_39=((A >> 5)&1)&((B >> 5)&1); dout_40=dout_38&dout_37; dout_41=dout_38^dout_37; dout_42=dout_39|dout_40; dout_43=((A >> 6)&1)^((B >> 6)&1); dout_44=((A >> 6)&1)&((B >> 6)&1); dout_45=dout_43&dout_42; dout_46=dout_43^dout_42; dout_47=dout_44|dout_45; dout_48=((A >> 7)&1)^((B >> 7)&1); dout_49=dout_48^dout_47; O = 0; O |= (dout_16&1) << 0; O |= (dout_49&1) << 1; O |= (dout_26&1) << 2; O |= (dout_31&1) << 3; O |= (dout_36&1) << 4; O |= (dout_41&1) << 5; O |= (dout_46&1) << 6; O |= (dout_49&1) << 7; return O; }